want some? >> no, thank you. >> abc's becky worley has some tips to save you money and time and some calories. ♪ >> reporter: getting lost in a good movie is one of life's great pleasures. there's some secrets about this place that you should really know. first, your tickets. if you want to save money, by them at sam's or costco or aaa. it can save you 25% or more. and another idea, find a late-run theater. wait a few weeks and you get a five-star discount. if there's a really long line at the box office, bust out your smartphone. apps let you buy tickets on your phone, no printing necessary. this next bit of info is not really a secret, but let's just put it into numbers. when a movie starts at 7:00, that usually means 7:10 or later. those ads they show are a huge profit source for theaters. and the concession stands holds some major secrets. first, the theater makes 40% or more revenue off the food and drinks. so they're using all the tricks they can to get you to buy. the smell of popcorn. ahhhh. that smell is from coconut oil used in the popper and a flavoring concoction. what'